An ad took over my computer stating I should get anti-virus protection.
You've been nagged by malware in all likelyhood - dont pay attention to these fake ads! Don't download anything or let anything run from unknown sources on the internet - or you'll be infected really quick.
Probably you have been infected, so this is a windows issue.
I'm sorry, but you made a big mistake by clicking on that ad. Try to get some real antivirus/antimalware or reinstall your operating system.